effective frequency

基本解释

It maximizes effective frequency sculpting without harshness or gaping holes in the audio spectrum.
它最大限度地有效频率无苛刻的漏洞，或雕刻在音频频谱。
In most of the conditions, when the average frequency reaches 3 times in 4 weeks, it can form effective frequency.
在绝大多数情况下，在为期4周的时间内，平均频次达到3就可以形成有效频次。
Another source with a 12V battery, a 50HZ effective frequency to avoid interference due to the reduction of power conversion circuits, the entire hardware circuits are more simplified.
另外电源采用了12V蓄电池，有效的避免了50HZ工频干扰，由于减少了电源转换电路，整个的硬件电路也更加的简化。

The insider threat has traditionally been viewed as a high-consequence but low-frequency risk, and many IT organizations have found it challenging to develop effective programs that manage that risk.
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